GM/Isuzu Duramax plant expansion to add another 150 more positions. Wayne Gerdes – CleanMPG – Dec. 13, 2015 2016 Chevrolet Silverado HD with the award winning 6.6L Duramax Turbo Diesel Review. DMAX, Ltd, the GM and Isuzu joint venture responsible for the Duramax Turbo Diesel, will invest $82 million at the DMAX plant in Moraine, Ohio. This investment is touted as providing productivity improvements for future Duramax turbo diesel engine-related production while creating approximately 150 construction jobs over the next three years. The expansion is still dependent on state and local Government incentive offerings. Less than a year ago, the plant received a $60 million investment to make design changes enabling turbo diesel engine production to meet future emissions standards. Duramax History Since opening in 2000, DMAX has produced almost 1.7 million turbo diesel engines. GM owns 60 percent and Isuzu owns 40 percent of the venture that makes the Duramax turbo diesel for heavy-duty trucks. DMAX, Ltd. has invested $856 million in the DMAX facility since 2000. DMAX is home to the GM Duramax 6.6L Turbo Diesel engine used in the Chevrolet Silverado and GMC Sierra. The current Duramax V8 is SAE certified at 397 hp and 765 lb-ft of torque. All Duramax engines include a high-pressure (30,000 psi) Piezo-actuated injectors for greater fuel efficiency, improved performance and reduced emissions. The Duramax is also available in the Chevrolet Express and GMC Savana full-size vans. GM North America Manufacturing Manager Scott Whybrew: All-in, expect to hear more about the excellent GM Duramax for many more years to come.